H. Pierre Noyes (December 10, 1923 – September 30, 2016) was an American theoretical physicist. He became a member of the faculty at the SLAC National Accelerator Laboratory at Stanford University in 1962. Noyes specialized in several areas of research, including the relativistic few-body problem in nuclear and particle physics.

Noyes was born in 1923 in Paris, France to the American chemist William Noyes and his third wife Katherine Macy, daughter of Jesse Macy. His older half-brother was Albert (1898–1980) and his brother Richard (1919 – 1997); both were chemists.

Noyes received his baccalaureate degree in physics (magna cum laude) in 1943 from Harvard University. Noyes earned his Ph.D. in theoretical physics from the University of California at Berkeley in 1950 doing research under the direction of Robert Serber with Geoffrey Chew as his advisor.

After earning his Ph.D., Noyes spent a postdoctoral year on a Fulbright scholarship at the University of Birmingham, England.

Noyes’ career included several academic and research positions. He first worked as a post-doctoral fellow and then as assistant professor of Physics at the University of Rochester (1952–5).

In 1955, Noyes joined the Theoretical Division of what was to become the Lawrence Livermore National Laboratory. From 1956 to 1962, he served there as group leader of the General Research Group, under co-founder and director Edward Teller.

During a sabbatical from his work at Lawrence Livermore in 1957 and 1958, Noyes was Leverhulme Trust Lecturer in the Experimental Physics Department of the University of Liverpool. He also worked as a consultant to General Atomics under Freeman Dyson and Ted Taylor for Project Orion.

In 1961, Noyes served as AVCO visiting professor at Cornell University.